ZEsarUX v12.1 RC is released. ZEsarUX is a ZX Machines Emulator for Unix, including: ZX Spectrum ; ZX-Uno ; ZX80 ; ZX81 ; Z88 ; Jupiter Ace ; Chloe 140 SE, Chloe 280 SE ; Prism ; Timex TS 2068 ; Amstrad CPC 464. ZEsarUX is Open-Source and runs on Windows, Mac OS X and Linux.

ZEsarUX Features:
* Runs on any Unix system and Windows: tested on Linux x86, Linux x86_64, Linux Raspbian, Mac OS X, Windows native, Windows + Cygwin
Emulates:
* Science of Cambridge MK14
* Sinclair ZX80
* Sinclair ZX81
* Spectrum models: 16k, 48k (English and Spanish), Inves Spectrum +, Spectrum 128k (English and Spanish), Spectrum +2 (English, Spanish and French), Spectrum +2A (English and Spanish), Spectrum +3 (English and Spanish), Microdigital TK90X (Portuguese and Spanish), TK95
* Sinclair QL
* Cambridge Z88
* Timex TS 2068
* Sam Coupe
Pentagon
* Chloe 140 SE, 280 SE
Chrome
Prism
ZX-Uno
* ZX-Evolution BaseConf
* ZX-Evolution TS-Conf
* TBBlue/ZX Spectrum Next
* Jupiter Ace
* Amstrad CPC 464
* Is the only emulator for machines: ZX-Uno, Chloe 140/280, Prism, TBBlue and Chrome
* Almost perfect emulation of timing of all Spectrum machines
* Supports undocumented Z80 flags, features, and MEMPTR register
* Supports idle bus port, contended memory, ULA early/late timings
* Supports Motorola CPU 68008 (Sinclair QL)
* Supports SC/MP CPU - INS8060 (MK14)
* Supports Pentagon timing
* Supports perfect ZX Spectrum 16k/48k colour palette
* Supports ULAplus: Standard 64 colour palette, linear modes with 16 colours per pixel: Radastan Mode: 128x96, ZEsarUX modes: 256x96, 128x192, 256x192
* Supports Chroma81 ZX81 Colour mode
* Supports Spectra Video Modes
* Supports Timex Video modes (Mode 0 standard, 1 dual screen, 2 hires colour 8x1, 6 512x192 monochrome)
* Supports All Video modes from Prism machine
* Supports ZGX Sprite Chip
* Supports snow effect on Spectrum models
* Supports interlaced, scanlines and Gigascreen effects
* Supports hi-res modes on ZX Spectrum (rainbow effects and others) and ZX80/ZX81 (UDG, CHR$128, WRX, HRG and some other hi-res modes)
* Supports reducing the screen to 192x144 (0.75 scale)
* Can be used with joystick and environments without keyboard, like Raspiboy / Retropie
* Emulates all the oddities of the Inves Spectrum +: 64 KB RAM, RAM initialization with FF00H pattern, OUT ula AND RAM, EAR and MIC XOR, no contended memory, snow in border, colour ula delay, interrupt starts at end of top border (not at the beginning of the border), corrupt memory on every interrupt, no idle bus
* Uses Video drivers: X-Windows, SDL, Cocoa (Mac OS X), Framebuffer, ncurses, aalib, cacalib, stdout(console), simpletext(console)
* Uses Audio Drivers: PulseAudio, Alsa, SDL, DSP(OSS), CoreAudio (Mac OS X).
* Supports dumping audio & video to file
* Supports real tape loading of file formats: RWA, SMP, WAV, TZX, CDT, TAP, P, O. It handles loading of turbo load tapes or any type of tape loading for standard/non standard loading routines
* Handles binary tape format files (TAP, TZX, O, P, CDT) on standard BASIC ROM routines for ZX Spectrum, ZX80, ZX81, Jupiter Ace
* Handles real audio loading (RWA, SMP, WAV) on standard BASIC ROM routines for ZX Spectrum, ZX80, ZX81, Amstrad CPC, Jupiter Ace
* Simulates real tape loading on standard BASIC ROM routines for ZX Spectrum, ZX80, ZX81
* Handles snapshot format: ZSF, ZX, Z80, SP, SPG, SNA (loading only), P, O, Z81 (loading only), ACE
* Handles RZX playback
* Emulates Multiface One, 128 and Three
* Handles DCK Timex dock cartridges
* Emulates +3 Disk
* Emulates Betadisk/TR-DOS
* Emulates ZX Spectrum MMC Interfaces: ZXMMC, DivMMC
* Emulates ZX Spectrum IDE Interface: DivIDE, 8-bit simple
* Emulates Sam Coupe IDE Interface: Atom Lite
* Emulates ZXPand MMC Interface on ZX80 and ZX81
* Emulates ZX Dandanator! Mini
* Emulates Speccy Superupgrade
* Emulates Kartusho
* Handles RAM, EPROM, Intel Flash and Hybrid (RAM+EPROM) cards on Z88
* Handles compressed formats zip, tar, rar, gz through external utilities
* Supports AY Chip, Turbosound (2 AY Channels), 3 AY Channels, different DAC: Specdrum, Covox
* Supports Quicksilva, ZON-X81, and VSYNC-based sound on ZX80/81
* Supports Speaker and Soundbox sound on Jupiter Ace
* Experimental simulation of the Sam Coupe Audio Chip (SAA1099)
* Supports RAM packs on ZX80/81 up to 56 KB
* Supports RAM packs on Jupiter Ace up to 35 KB
* Joystick emulation with real joystick (on Linux) and keyboard cursors: Kempston, Sinclair 1&2, Cursor Joystick, Cursor & Shift, OPQA, Fuller, Zebra, Mikro-Gen, ZXPand. Autofire function also
* On Screen keyboard useful when playing with joystick
* Emulates Spectrum keyboard ghosting error feature
* ZX Spectrum Recreated keyboard support
* Supports native turbo modes on ZX-Uno, Chloe, Prism and TBBlue and manual for other machines
* ZX Printer emulation
* Lightgun emulation: Almost perfect emulation of Gunstick from MHT Ingenieros S.L and experimental emulation of Magnum Light Phaser
* Kempston mouse emulation
* Supports Input spool text file to simulate keyboard press
* Supports reading Pokes from .POK files
* Supports playing .AY sound files
* Supports ZEsarUX remote command protocol (ZRCP). You can do enhanced debugging on ZEsarUX by using a telnet client.
* Can use a reduced Spectrum core, with some features disables, useful on slow devices, like Raspberry Pi 1/Zero
* Powerful debug features: Registers, Dissassemble, Conditional Breakpoints using text expressions, Watches, Step-to-step, Step-over, Runto, Show TV electron position, Load source code, Hexadecimal Dump, View Sprites, Find byte (useful to find POKEs), CPU Transaction log, View BASIC, verbose messages on console
* Accessibility support: Print char traps allows to capture generated text from almost any program or game, using standard ROM calls (RST 10H) or even non standard print character rutines. Can send generated text from a game to a text-to-speech program. It's ready for text to speech support for blind or visually impaired people. Menu emulator can be also read by a text-to-speech program.
* Simulates upper RAM memory refresh on Spectrum 48Kb, losing its contents when changing R register very quickly
* Supports command line settings, configuration file settings and per-game configuration settings
* Other features: Visualmem menu, CPU Statistics
* Includes three easter eggs: Can you find them? :)

ZEsarUX changelog:
New things added:
Added Streaming mode to ZENG Online for ZX Spectrum. It improves gaming experience: reduces lag and drops all game state inconsistencies between all players
Added ZXMMC+ emulation
Added second MMC/SD card emulation
Added support for steering wheel joystick (and other analog joystick controls) to racing games (using pre-defined modification for specific games or custom)
Added conversion of ZX81 files P to P81, and P81 to P
Allow to LOAD "name" of a ZX81 .P81 file
Added real joystick support for SDL2
Added direct functions to increase/decrease/silence Audio Volume
Allow to save ZX80/81 screen to .scr file
Allow to save text note on a ZSF snapshot
Allow to locate rom files running ZEsarUX from a current folder different than the rom path
Allow machine selection by family type (Spectrum, ZX80, ZX81, CPC, etc)
Added .ay file support to File Viewer
Added GENS file support to File Viewer
Allow to change configuration file path from the menu
Allow to view expanded file from Storage submenus (tape, dsk, etc)
Allow to view GO SUB Basic stack
Added configuration wizard when running ZEsarUX for the first time
Added support for up to 4 joystick fire buttons on:
Kempston joystick (Spectrum): 4 buttons
Amstrad CPC: 3 buttons
Master System, SG1000, Colecovision: 2 buttons
Improvements:
Improved AY Player:
Allow to load playlist
Allow to save playlist (full playlist or just marked files)
Allow to increase track length (for some tracks with incorrect length)
Added direct functions to next/previous track/file
Show tenths of a second on song length and time elapsed
Better shuffle algorithm
Fixed silence detection when playback paused
Tell if no song is playing
Improved Sinclair QL emulation:
Allow to increase RAM size
Allow to load and save QL screen files
Added QL Screen file previews on File Selector
Allow to use win1_ device as an alias to mdv1_ (useful for QL-SD paths)
Fixed Sinclair QL keyboard: allow fast text writing
Allow display blanking
Improved ZX Vision:
Allow to hide minimized windows
Allow to place windows beyond ZEsarUX main window limits
Do not reopen menu when closing a Window
Allow fast text writing on input fields
Show, with a dot, when an icon is an open window but minimized
Keep ZEsarUX window size proportions (disallow different zoom x/y) by default
Hide cursor when sending a window to background
Allow to show short text for icons on ZX Desktop
Preserve icon name when changing its type
Changed charset for style ZEsarUX Plus: now uses the same as AtariTOS, it's a charset with better readability
Added rzx files support for file selector: can be expanded (to z80 snap file), show file previews, convert to SCR, convert to Z80, use as ZX Desktop background
Fixed glitch duplicating Main Menu when pressing F6 on Main Menu
Improved Debug CPU:
Allow to see and go to previous address of an opcode in cpu history
Show port number when port read opcode (IN, INI, etc). Show keyboard row when port is XXFEH on Spectrum
Show view number inside the window and not in the window title
Added pass count to breakpoints (a breakpoint that is triggered when the condition is hit a certain times)
Improved edit breakpoint window
Added option to enable/disable all breakpoints
Fixed moving cursor up when address near 0
Watches can show results in hexadecimal or decimal
Allow to set labels in Watches
Improve Memory Cheat:
Allow to set initial address
Can delete watches
Improve window layout
Improved ZRCP:
Allow to set Linemode Telnet (char mode): allow cursor up, backspace, tab, ctrl-c, ctrl-d
Better CR+LF handling
Added commands: cd, pwd
Improved External Audio Source window:
Show frequency when detected pilot tone or bits 0/1
Show approximate bytes read
Show average frequency when unknown signal
Allow to enable input from this window
Improved View Basic window:
Allow lines > 9999, useful for protected programs
-...
Improved conversion audio to P/P81 ZX81 files: added alternative enhanced algorithm
Improved Hexadecimal editor: follow expression is saved on configuration
Improved maximum sent keys to ZENG/ZENG Online
Improved Windows timing and any other system using SDL video driver. Now uses SDL Timing
Improved Mac timing by using native timer
Improved Watermark Logo: can be shown only when loading/saving, can change colors when loading/saving
Improved Adventure Map showing enter and exit directions
Improved File Selector: allow to use path to a FAT mounted image on all cases
Improved Visual Cassette Tape window: support standard tape too
Improved Custom rom setting adding a Reset machine option
Improved DivMMC, DivIDE and ZXMMC emulation: allow to enable them even if no MMC/SD card or IDE inserted
Fixes:
Fixed semaphore locking on Windows
Fixed cpu usage calculation when footer is disabled
Fixed setting esxdos handler root dir when loading a .nex file without path from command line
Fixed bug restoring ZSF snapshot with DivIDE enabled
Fixed segfault when pressing CTRL-C on console
Fixed PCW palette colour changes
Fixed Chloe keyboard: allow fast text writing
Fixed toggle breakpoint on a position that already had a breakpoint when breakpoints were disabled
Fixed smartloading a tape file when a dsk is inserted
Fixed visual casette tape when inserting an unsupported tape
Fixed write protect tab on visual hilow datadrive window
Fixed File Selector column for "
" text on folders with utf-8 characters
Fixed separator menu item on stdout video driver
Fixed showing minimum volume on External Audio Source window

Download: ZEsarUX v12.1 RC
Source: Here